Species · Montana · BBS 2025 Release · 1966–2024
Gray Catbird Population Trend in Montana
Gray Catbird in Montana has increased: up 33% on the route-weighted index since 1970.
+33%Since 1970
90Routes In State
56Years
Notable Gray Catbird Trends in Montana
No notable trend signals for Gray Catbird in Montana. See the full index history below.
Gray Catbird Population Forecast in Montana
If the recent trend holds, Gray Catbird in Montana is projected to rise about 49% by 2029 — from 0.99 in 2024 to a central estimate of 1.5 (95% range 0.88–2.1). A 5-year backtest shows a typical error of ±23.3%, with 100% of held-out values landing inside the 95% band.
+49%Change by 2029
1.5Projected 2029 index
0.88–2.195% range
±23.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 1.4 | 0.84 | 2.0 |
| 2026 | 1.4 | 0.85 | 2.0 |
| 2027 | 1.5 | 0.86 | 2.0 |
| 2028 | 1.5 | 0.87 | 2.0 |
| 2029 | 1.5 | 0.88 | 2.1 |
Gray Catbird Survey Routes in Montana
| Reed Point | 8 | 2024 | 1977 |
| Chestnut | 7 | 2024 | 1968 |
| Heart Butte | 7 | 2024 | 2015 |
| Kalispell | 6 | 2024 | 1968 |
| Flatwillow | 5 | 2008 | 1970 |
| St Xavier | 5 | 2011 | 1980 |
| Chinook | 5 | 2023 | 2015 |
| Libby Dam | 4 | 2024 | 1979 |
| Cleveland | 4 | 2024 | 1979 |
| Woodman | 4 | 2022 | 1969 |
| Elliston | 4 | 2024 | 1968 |
| Forsyth | 4 | 2021 | 1989 |
| East Glacier Park | 4 | 2024 | 2015 |
| Wolf Creek | 4 | 2022 | 2015 |
| Custer 2 | 4 | 2024 | 2024 |
| Redstone | 3 | 2023 | 1976 |
| Ninemile | 3 | 2024 | 1995 |
| Lima | 3 | 2024 | 1994 |
| Willow Creek 2 | 3 | 2024 | 1982 |
| Freeman Creek | 3 | 2016 | 2015 |
| Clyde Park | 3 | 2024 | 2018 |
| St Mary | 2 | 2008 | 1968 |
| Augusta | 2 | 2024 | 1976 |
| Roy | 2 | 1999 | 1997 |
| Circle | 2 | 1975 | 1973 |
Gray Catbird Population Trend in Other States
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Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.